Home / 142,908.80-197,199.93-82,498.90

Finding the Fourth Proportional to 142,908.80, 197,199.93 and 82,498.90

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Solution

The fourth proportional to 142,908.80, 197,199.93 and 82,498.90 is: 113,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,908.80 : 197,199.93 = 82,498.90 : x
  2. Step 2: Convert to fraction form
    142,908.80/197,199.93 = 82,498.90/x
  3. Step 3: Cross multiply
    142,908.80x = 197,199.93 × 82,498.90
  4. Step 4: Simplify right side
    142,908.80x = 16,268,777,305.08
  5. Step 5: Solve for x
    x = 16,268,777,305.08/142,908.80
  6. Step 6: Final answer
    x = 113,840.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.